Answer
$0.4$
Work Step by Step
Recall the logarithmic property:
$a^{ \log_a (x)} =x$
We wish to simplify
$2^{ \log_2 (0.4)} $
Applying the property above gives:
$2^{ \log_2 (0.4)} =0.4$
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0-32193-104-1
ISBN 13:
978-0-32193-104-7
Chapter 4 - Exponential and Logarithmic Functions - Chapter Review - Review Exercises - Page 370: 21
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